SmokeLoader — triage_dropped_file [059d615c]

Tehdit Valeurlendirmesi

Bu ornek, hedef sisteme ek zararlı yazılım yuklemek amacıyla tasarlanmis moduler bir yukleyici (loader) olarak tespit edilmistir. Bankacılık trojanları, fidye yazılımları veya diger ikinci asama yukler indirebilmektedir.

Capacités détectées

• Payload Indirme
• Surec Enjeksiyonu
• Kalicilik
• Anti-Analiz
• Sifrelenmis Iletisim

Étiquettes MalwareBazaar

Note d’analyse

Bu ornek SmokeLoader ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.

SmokeLoader — Profil du malware

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

Type de malware

Loader

Langage de programmation

C

Protocole C2

HTTP

Systèmes ciblés

Windows

Aussi connu sous (AKA)

Dofoil

Détails techniques

SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.

Attribution / Acteur de la menace

Unknown (sold on underground forums, multiple operators)

Capacités et comportement

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

Liste IOC (2 indicateurs)

IOC — SmokeLoader Copier

# SHA256 059d615ce6dee655959d7feae7b70f3b7c806f3986deb1826d01a07aec5a39cf # MD5 95962030ed82d12fa0265087ba3a0bf7

Type	Valeur	Note
sha256	059d615ce6dee655959d7feae7b70f3b7c806f3986deb1826d01a07aec5a39cf
md5	95962030ed82d12fa0265087ba3a0bf7

Serveurs C2 (5 serveurs enregistrés pour cette famille)

Adresse	Type	Port	Protocole	Statut	Pays
80.66.75.36	ip	80	HTTP	inactive	RU
148.72.171.175	ip	80	HTTP	inactive	US
91.243.44.247	ip	8888	HTTP	inactive	RU
185.173.35.16	ip	8080	HTTP	inactive	RU
torcavpcs1.atitech.com	domain	443	TCP	inactive	—

Les adresses C2 proviennent uniquement d'échantillons de malwares vérifiés manuellement par l'équipe KEYDAL. Toute utilisation commerciale est interdite.